104 H. Woodward — JSfew Phyllopodous Crustaceans. 



dorsal scutes. These are cavities left in the matrix by spines. In 

 order to understand this, however, it is necessary to bear in mind 

 that the specimens are altogether mere impressions left in the matrix. 

 On comparing the figures, it will be observed that there are more of 

 these pits in one than in the other, besides other differences that might 

 seem to indicate that they belong to very different species, These 

 differences, however, we are rather inclined to believe due to the 

 different manner in which the specimens have been crushed, and 

 the fact that the specimen figured is pressed nearly flat, while the 

 other retained more of its natural convexity, and likewise shows 

 more of the dorsal side and less of the smaller ventral segments. 



" Under a magnifier, the surface of all the specimens shows a 

 minutely granular appearance. As these granules are seen on the 

 surface of moulds or impressions left in the matrix, they indicate the 

 presence of a minutely pitted marking on the fossil itself. 



" Locality and position : Lower part of true Coal-measures, Mazon 

 creek, Grundy county, Illinois, United States, North America." 



The indications of dorsal spines observable both on the American 

 and Scotch specimens (a character not known in any existing 

 Myriapod), together with their equally large size, agreeing as they 

 also do closely in the number of their segments ; they may, with 

 propriety, be referred to the same genus. 



But as the dorsal scutes observed in the Illinois examples appear 

 to be absent in the Kilmaurs example, the segments of which are 

 more strongly corrugated than are those of its American congener, it 

 will perhaps be better to give it a distinctive specific appellation. 



I therefore propose to name this fine English Myriapod Euphoheria 

 Brownii, after its discoverer, the late Mr. Thomas Brown, whose 

 indefatigable labours in seeking fossils in these deposits deserves to 

 be had in remembrance. 



EXPLANATION OF FIGS. 6 and 7, PLATE III. 



Fig. 6. Euplioheria Brownii, H. Woodw., in an Ironstone-nodule from the Coal- 

 measures, Kilmaurs, near Glasgow (figured of the natural size). 



6«. Four of the segments enlarged, showing the bases of the dorsal spines and 

 the feet. 



65. One of the feet much enlarged. 



7. Euphoheria armigera. Meek and Worthen, natural size. Ironstone ; Coal- 

 measures; Grundy Co., Illinois, U.S. 



III. — On some new Phyllopodous Crustaceans feom the 



Paleozoic Eocks. 



By Henry Woodward, F.G.S., F.Z.S. 



(PLATE III., Figs. 1-6.) 



1. Ceratiocaris Ludensis, H. Woodw., Plate III., Fig. 3 (^ nat. size). 



DUEING last summer I visited the interesting and ancient town 

 of Ludlow, where, under the guidance of Mr. Eobert Light- 

 body, F.G.S., I had the opportunity of seeing the admirable Public 

 Museum, belonging to the Ludlow Natural History Society, and 

 also the rich private collection of Mr. Lightbody and that of Mr. 

 Humphrey Salwey. In the Society's Museum, my attention was 



